222279018894 has 24 divisors (see below), whose sum is σ = 481644273240. Its totient is φ = 74086893648.

The previous prime is 222279018827. The next prime is 222279018901. The reversal of 222279018894 is 498810972222.

222279018894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 222279018894.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 282412 + ... + 724095.

It is an arithmetic number, because the mean of its divisors is an integer number (20068511385).

Almost surely, 2^222279018894 is an apocalyptic number.

222279018894 is an abundant number, since it is smaller than the sum of its proper divisors (259365254346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222279018894 is a wasteful number, since it uses less digits than its factorization.

222279018894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018784 (or 1018781 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 222279018894 in words is "two hundred twenty-two billion, two hundred seventy-nine million, eighteen thousand, eight hundred ninety-four".